In message
, at
01:10:53 on Thu, 14 Jul 2011, W14_Fishbourne
remarked:
However, I am a bit mystified why the door interlocking doesn't (a)
just prevent power being taken when a door is open rather than, as the
implication is here, (b) allowing power to be taken then cutting it
off if a door is open. Presumably interlocking of type (b) also covers
the event of a train door coming open while the train is moving,
giving two levels of protection for the price of one.

Do these trains have lights over the doors to show they aren't closed
yet (like older tube trains)?
--
Roland Perry